The Normal Inverse Gaussian Distribution for Synthetic CDO Pricing

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PRICING AND HEDGING OF PORTFOLIO CREDIT DERIVATIVES WITH INTERACTING DEFAULT INTENSITIES (2008, background): “[19], Guegan and Houdain [13] or Elouerkhaoui [7] consider models based on alternative copulas leading to more frequently occurring default clusters.”
Pricing CDOs with Correlated Variance Gamma Distributions (2006, unknown): “If X ∼ V G(θ, ν, σ, μ), the Laplace transform LX of X is given by LX(z) = e μz ( 1− θνz − 1 2 νσ(2)z(2) )− 1 ν , z ∈ R, (14)”